Katie has been with us for 3 1/2 weeks. She is much more comfortable and is slowly learning to trust us. I started grinding her nails and brushing her teeth early last week. We have done nails three times and surprisingly she does very well. I put her on my lap, on top of a pillow, and put my arms around her. At first I would hold her head down and she would struggle; I've learned that she is much more comfortable with her head up so she can see what I'm doing. She'll allow me to do them for a few minutes (which is plenty for up keeping nails). I can tell she is very nervous because her paws start to sweat a lot, but she stays put and makes it a one person job. She does not like teeth brushing, but will tolerate it okay.
The only negative from grooming is that she no longer lets me pick her up easily. She usually will run around for a while, and tricks that used to work (sitting still on the floor, crawling to her) no longer gets her to come/stop.
Since she has become more comfortable, she likes to sleep on the floor on the dog beds instead of hanging out right next to us. She will always come around and check on me if I leave the room too long, or she'll just stop and grin, wag her tail, and let us pet her.
Katie is a love bug and continues to try very hard to trust. She is already a different dog than the girl that came to us in early June.
Here is Katie all curled up <3